Bookcase



FIG. 1 is a front perspective view of an embodiment of the shelving unit;

FIG. 2 is a front perspective view thereof and showing items in place in dotted line;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines are for the purpose of illustrating the environment of the article only and form no part of the claimed design. 

CLAIM The ornamental design for a bookcase, as shown and described. 